The actual model from the original "Star Trek" series is now on display at the National Air and Space Museum.

The world's largest outdoor organ is played weekly by one of just two civic organists in the U.S.

An extraordinarily ornate museum in San Diego holds wondrous anthropological treasures.

Legend tells how a Spanish soldier disappeared from this isolated sentry box without a trace.

This giant bronze image of Christopher Columbus embarked on a voyage of its own.

This small fort played a huge role defending Puerto Rico’s capital city.

A magnificent waterfall nestled in the heart of the El Yunque National Forest.

An enchanting natural wonder in Puerto Rico's Camuy River Park.

Elvis's own personal tropical hideaway.

A Memphis park where you can walk the whole Mississippi River in one go.

Home of mutant livestock.

A Rocky Mountain city provides a happy ending for a pinto pony and his Brobdingnagian red chair.

The blinking light atop the iconic landmark has been sending secret messages for decades.

There are lots of hands and feet stamped in the cement in front of Grauman’s Chinese Theater, but Mel left behind something extra.

Scores of vintage street lamps shine along L.A.’s Miracle Mile.

These delicate buggers are some of the rarest fossils that have bubbled up from the Tar Pits.

Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.

A quiet, semi-secret square with statues of Mahatma Gandhi, Virginia Woolf, and a conscientious objectors stone.

The "lost friend” is the most famous of the six moai statues that were removed from Easter Island.

Tucked away in the Tower of London is the weapon once used to execute high-profile prisoners.

Six ravens are kept captive (but well-fed) at the Tower of London to prevent the fall of the Crown.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

An ancient Roman temple first dedicated to an emperor's wife is now a church.

This one-of-a-kind Roman arch is not actually dedicated to the god Janus.